请问是be occupied with还是be occupied by?是哪个?还是2个都有的?怎么区分

请问是be occupied with还是be occupied by?是哪个?还是2个都有的?怎么区分 be occupied with造句 请问……be busy with和be occupied with的区别? (occupied) with her graduation paper ,Mary has no time to do a job.be occupied with,be 为什么可以省?having been occupied 表被动嘛?occupy是不及物动词,vi过去分词不是只表完成不表被动吗? be occupied with和be occupied in分别什么意思哦? be occupied with翻译成中文如题 be crowded with 和be loaded with 和be occupied by有什么区别?语境? be occupied with 、、嗯、现在完成时当然是说“have/has been occupied with”,那个、这里的“have/has”是不是表是完成呐、那个“been”又是什么意义啊?还有、现在完成进行时“have/has been doing”、那 ______herself with daily office tasks,she had no time to look after her childrenA.Occupying B.Occupied C.Being occupied D.To be occupied be occupied in doing 像be occupied with这类词组,是不是没有用进行时态的啊? be occupied with和be engaged with的区别和用法?两个都有忙于做的意思，求区别 western什么时候小写,是不是一般都大写?还有be engaged with 与be occupied in有什么区别? western什么时候小写,是不是一般都大写?还有be engaged with 与be occupied in有什么区别? (Sorry I am occupied with my homework)的中文意思 着急!英译汉 As our fully occupied with orders...As our fully occupied with orders,we regret having to deline yours -How was the journey?-tiring!I caught the train at the last second but all seats ____.I stood the whole way.答案是were occupied.请问为什么不能用had been occupied? be occupied in doing 中的in可省略吗